Network · AS40923

AS40923 FMR LLC

AS40923 (FMR LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS40923

  • OwnerFMR LLC
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses11,264
  • IPv4 ranges17
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 155.199.32.0/21
  • 155.199.200.0/21
  • 155.199.40.0/22
  • 155.199.208.0/22
  • 155.199.192.0/22
  • 192.223.160.0/23
  • 192.223.136.0/23
  • 155.199.216.0/23
  • 155.199.196.0/23
  • 192.223.249.0/24
  • 192.223.236.0/24
  • 192.223.198.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.

Check an IP address →

Detect it in code

Spot AS40923 traffic at signup.

Send the visitor's IP. The response includes the ASN, the owner and flags.hosting.

curl https://veqen-app.com/v1/ip/check \
  -H "Authorization: Bearer $VEQEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ip": "203.0.113.7"}'
import os, requests

r = requests.post(
    "https://veqen-app.com/v1/ip/check",
    headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
    json={"ip": "203.0.113.7"},
    timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])
const res = await fetch("https://veqen-app.com/v1/ip/check", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({"ip": "203.0.113.7"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);
Questions

About AS40923

Is AS40923 a datacenter or VPN network?

AS40923 (FMR LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS40923?

AS40923 is registered to FMR LLC. It announces about 11,264 IPv4 addresses.

How do I detect traffic from AS40923?

Call the Veqen IP check with the visitor's address. The response includes the ASN, the owner and whether the network is a datacenter, VPN network, relay or ISP.